Re: [PATCH 02/17] bitops: Add generic parity calculation for u64
From: "H. Peter Anvin" <hpa@zytor.com>
Date: 2025-02-26 01:39:22
Also in:
bpf, dri-devel, linux-input, linux-media, linux-serial, linux-wireless, lkml
On February 25, 2025 1:43:27 PM PST, Andrew Cooper [off-list ref] wrote:
quoted
Incidentally, in all of this, didn't anyone notice __builtin_parity()?Yes. It it has done sane for a decade on x86, yet does things such as emitting a library call on other architectures. https://godbolt.org/z/6qG3noebq ~Andrew
And not even a smart one at that.